more python 3.7 compatibility changes

utils.py

@@ -200,13 +200,13 @@ def one(
 
 
 def match_one(
-    pattern: Union[str, re.Pattern[str]],
+    pattern: Union[str, re.Pattern], # pyright: ignore # Union[str, re.Pattern[str]],
     string: str,
     flags: int = 0
 ):
     return one(
         iterable=re.finditer(
-            pattern=pattern,
+            pattern=pattern, # pyright: ignore
             string=string,
             flags=flags
         )